semble — Fast Token-Efficient Code Search for Agents

~98% fewer tokens than grep+read. Index in ~250ms. Query in ~1.5ms. No GPU, no API key.

Semble returns only the relevant code snippets agents need, without grepping full files or reading directories. A natural-language or symbol query like "authentication flow" or "save_pretrained" returns exact chunks with file paths and line ranges — nothing more.

Installation

MCP (Claude Code — recommended)

# Requires uv: https://docs.astral.sh/uv/getting-started/installation/
claude mcp add semble -s user -- uvx --from "semble[mcp]" semble